PHEVOS Wireless Stereo Bluetooth Headset Neckband Sport headphone EarphoneHD7-Black 100% Brand New and High Quality Bluetooth Version 4.1+EDR. Unique neck-strap design for easy carrying, Ultra-light weight for all day comfort Vibration alert on call, Earphone battery display on smartphone. Easy magnetic earphone storage, Noise reduction & Echo cancellation Backward compatibility to all previous Bluetooth versions and compatible universally to all Bluetooth enabled mobile device